Thanks, i guess i will finally update my firmware as i am still on the 1.2.1 version.
Also mytrezor started to work again in Firefox after i deactivated and reactivated the plugin 2-3 times, no idea why it works now but at least it works

It still says in the log that it failed to load "Chrome Extension transport" but this time it loaded the plugin transport after the failed loading of the "Chrome Extension transport".

Trezor firmware is now at 1.3.3.
Have you ever done a "sudo apt-get update" followed by a "sudo apt-get upgrade" on your Linux machine?
... and while you are at it do "sudo apt-get dist-upgrade"... nothing really related to Trezor, but you seem to be the type of guy that doesn't update his devices very often...
Lol, dont worry, i update my machines frequently, i just dont wanto to update something frequently which holds a significant amount of my wealth as new code can always introduce new problems and i did not noticed any huge security patches in the Trezor firmware updates.